#include <stdio.h>

#define ONE_FLAG (1<<0)//0000 0000 0000...0000 0001
#define TWO_FLAG (1<<1)//0000 0000 0000...0000 0010

#define THREE_FLAG (1<<2)//0000 0000 0000...0000 0100
#define FOUR_FLAG (1<<3)//0000 0000 0000...0000 1000


void Print(int flags)
{
	if(flags & ONE_FLAG)
	{
		printf("One!\n");
	}
	if(flags & TWO_FLAG)
	{
		printf("Two!\n");
	}
	if(flags & THREE_FLAG)
	{
		printf("Three\n");
	}	
	if(flags & FOUR_FLAG)
	{
		printf("Four\n");
	}	
}

int main()
{
	Print(ONE_FLAG);
	printf("\n");

	Print(ONE_FLAG | TWO_FLAG);
	printf("\n");
	Print(ONE_FLAG | TWO_FLAG | THREE_FLAG);
	printf("\n");
	Print(ONE_FLAG | TWO_FLAG | THREE_FLAG | FOUR_FLAG);
	printf("\n");
	Print(ONE_FLAG | FOUR_FLAG);
	printf("\n");
	return 0;

}


